BrunoH: Obviously you don't live in one of the launch countries. Lumia ads were omnipresent: At least one spot in each TV ad block, huge posters everywhere, booths in malls, shopping streets, train stations.

Also make sure to look at the right numbers, like population and worth. Number of countries is meaningless if one phone is introduced in small and poor countries only, whereas the other one sees a heavy launch in the biggest and most wealthy countries.